Mower



April 7, 1925. 1,533,028

C. PEARSON MOWER April 7, 1925. 1,533,028

C. PEARSON MOWER Filed June 12, 1920 s Sheets-Sheet a 1 @WQW Patented Apr. 7, 1925. i I n UN 1 T ED 5 T ATES PA TE NT OFFICE.

CHAR-LES PEARSON, on onxcneo, ILLINOIS, 'ASSIGNOB. ".ro INTERNATIONAL Hare vns'rna COMPANY, n'conrcniirion or NEW JERSEY.

MOWER. 1

Application filed June 12, I920. Seria1No.388,6S8.

T all whom it may concern: I I ing the "position of certain*parts-Whehthe Be it known-that I CHARLES PEARSO a cutter'bar 'is raised to verticalp'o'sition'; V '50 ci izen of the United States, residing at (1111- 'FIQ. is an enlarged detail view showcage, in the county of Cool: and State of ing'tlie construction ofthe reversible-green} 5 Illinois, have invented certain new and useingjniechanisin';

iul Improvements in Mowers, ofwhich the Fig. 6 is an enlarged detail plan View of following is a full, clear, and exact specifithe'bracket member which supports the lift 55 cat-ion, ing mechanism. II

This invention relates to mowing ma- Fig. 7 .is aside elevational view o'f'the 10' chines and more-particularly to mechanism hand lever and locking pawl, and

for adjusting the cutter bar in an improved Figs. '8 and 9 are plan and side elevanianner. tional views respectively of the lifting arm. 60

One of the objects of the invention is to The-mowing machine shown comprises the providean improved lever adjusting mechusualmain frame 1O mounted on the-carryanism. ingwheels ll having the drafttongue 12,11

further object is toprovide a device Coupling bar 13, a supplemental coupling which will lock the cutter bar in intermedibar let, a rocking coupling yoke '15 carried 65 ate positions and from these positions be by the grassward end of the main coupling either raised or lowered by depressing a bar and having depending-arms'16which lever. I are pivotallyjconnerted to the shoe 17 and A still further object is to provide a rea'finger bar 18. The frame'10 has securely versible lever mechanism for adjusting the fixed adjacent one side of the tongue 12a 70 cutter bar. bracket member 19, by means of bolts 20 These and other objects are attained by and 21. The bracket member 19 is proproviding improved means for adjusting the vide d with a vertically disposed toothed seccntting mechanism. More specifically stattor 22 having a rearward notch '23 and a ed, the invention in the present instance f rward n t h 24 f r theipur'poses herein- 75, comprises a manually reversible mechanism, after more fully set "forth. Later'ally exsuch, for instance, as two oppositely distending from this sector 22 is a bearin'g stud posed gears engageable with a lever mech- 25 formed integrally therewith which pivanism for adjusting'the cutter bar. I otally carries the'usual lifting arm 26.

The invention consists in general of cer- I Pivoted to the lifting arm 26 at 27 is a s0 tain novel details of constructionand cornlever .28 which is limited in its pivoted bination of parts hereinafterfully described, movement with respect tothe arm 26 by the and illustrated in the accompanying drawiorward and rearw'ard'stop portions29'and 1 I 30'respectively'on theiarin (see Figs.

in the accompanying drawings, like'char and 9). The lifting arm 26 is connected 85 acters of reference indicate like parts to the cutter bar 18 in the usual manner by throughout the several views, and- II means of common form of links 31 and lever Figure 1 is a top'plan view of apart of extension 32 formed integrally with-the shoe a mower embodying my inventlon; 17. Pi'votally'mounted on thebearing mem 2 is a vertical sectional View taken her 25 adjacent one side of the lifting arm 90 on the lines 22 in Fig. 1 looking in the 26 is a semicircular bevel gear member 33 direction of the arrows; having teeth 33 and an u -standin 'armsi 1 r. 3 is an enlarged detail view showing which has two stubblewardly extending ribs position of the different parts in the first forming a socket for loosely receiving p sition of adjustment; I thelever28 which is held withinthe socket Fig. dis an enlarged detail view showby a bolt 36. .The-lever'28 is"furth'er.pro-

vided with a freely rotatable gravity pawl 37, theffree end of which is adapted to enthe notches 23 and 24 of the sector 22.

For a more detailed description of the lock Eng mechanism above described see my Patent #1231689, August 21, 1917.

The Lip-standing arm 34 and the lifting arm 26 are provided with two oppositely disposed projections 38 adapted to position a spring 39 therebetween. This spring 39 normally forces the arm 34 rearwardly with respect to the: arm 26 a-ndthereby carries the lever 28 rearwardly about thepivot 27 mania engages the stop 30'on the lifting arm 26. i

'l he bracket 19 is further provided with: a grasswardly extendingmember 40 having an aperture 41 for the reception of the stud 42 which forms the bearing for a bevel pinion The pinion 43 is geared to thesemicircular gear member 33. Just above the member 40 is a horizontally disposed hearing portion 44 andstop 45. v Pivotally supported. by means of a bolt 44 on the bearing 44, and normally forced upwardly by a spring 46, is a lever guide arm 47. The free end of this guide arm is provided with a V-shaped portion 48 having laterally extending cars 48 which engages a foot lever 49 for the purposes hereinafter more fully set forth. The 'arm47 is limited inits upward movement by a stop 50, which engages the stop of the bracket-19 (see Figs. 3, 5-and 6). V p i Fivotally mounted on the bearing 25 ad jacent the grassward side of the semicircular gear member 33 is a pivot bracket 51 having a vertically disposed barrel portion 52. (See Figs. 4 and 5.) Pivotally mounted for lateral movement on this barrel portion 52 is a gear engaging member 54 having oppositely disposed teeth 53 and 54 for the j the foot lever 49. 7

Journaled on the bearing 25 and in mesh with the pinion 43 is a bevel gear 57. Adjacent the gras'sward side of this gear 57 and pivotally mounted on the bearing 25 is a sector 58 having its free end 59 connected by means of a bolt 61 to a stud formed integrally with the lifting arm 26. The forward end of this sector 58, is further provided with a bifurcated portion 62 adapted to receive a link 63 pivotally connected thereto by means of a pin 64. The free end of the link 63 is provided with a book 65 which is connected to the usual balancing spring 66, the rear end of which is adjustably connected to the frame 10 in the usual manner by the bracket 67, adjusting bolt 68 and collar 69. V

From the above description, it will be noted that the foot lever 49 is movable laterally about the pivot 53 from the normal position (shown in full lines in 5) to' 'ither of the dotted line positions, in which positions, the teeth 53 or 54 engage the eeth of the semicircular gear 33 or bevel gear 5. respectively.

A brief, description of the operation of theabove described construction will now be given:

If the operator desires to raise the cutter bar from normal cutting position (see Fig. 2) to'the intermediate position (see Fig. 3) the foot lever 49 is deflected stubblewardly about'the pivot 53to the dotted lineposition (shown in Fig. 5), causing-the teeth 53 of the gear engaging member to engage the teeth 33'. of the semicircular gear ,33,

and when the foot lever 49 is depressed from the dotted line position to the full line position shown inFig. 3, the hand lever 28 and lifting arm 26 is rotated counter-clockwise until the gravity pawl 37 on the lever 28 engages the notch 23 of sector 22 and there: by lock cutter bar 18 in intermediate position. It will be noted that when the operator relieves the pressure on the footlever 49, it is automatically returned to neutral and normal position; that is, disengaged from thegearteeth and raised to the dotted line position shownjin Fig. .4 ready; to be depressed'for the next adjustment of thecutter bar. noted that the lever guide 47 is springpressed upwardly into engagement with the lever 49 and normally holds the'lever 49 in neutral position,- by reason of the Vshaped portion 48 on the guide lever '47.

If the operator desires to raise the cutter bar from the intermediate position shown in Fig. 3 to the vertical position shown in Fig.

4 the above operation is repeated andthe gravity pawl 37 will engage the rear notch 23 and lock the cutter bar in vertical posi- The unlocking of the gravity pawl 37 andthe lowering cutter bar from the intermediate or vertical position to operative or cutting position is accomplished by deflectingthe foot lever 49 grasswardly about the pivot 53 until the teeth 54 engage the teeth of the gear 57. Then upon depressing the foot lever 49, the gear 57 is rotated in a counterclockwise direction and thereby through thepinion 43, the semicircular gear member 33 is rotated in a clockwise direction.

In this connection it is to be The initial part of this rotation causes the sen'iicircular gear member 33 and its arm 34 to rotate on the bearing member 25 and move "relative to lifting arm 26, thus compressing the 1 spring 39 and-' swinging the hand lever 28 about-its pivot-27 and 't'hereby releasingithegravity pawl 3'7'fromthe notch 24. This unlocks theli'fting arm26 so the same may be lowered to the position shown in Fig. 2 which is'the normal cutting position of the cutter'ba'r.

It will be noted fromtthe construction above described'that'two successive depressions of the foot lever 49 will raise the cutter bar from horizontal position to vertical position and alsothat one depression of=the foot lever will lower the cutter bar from either the verticalor intermediate positions to the cutting position.

While I have described in this a' 'iplication one "form which my invention may assume in practice, it is, of course,=to be-understood that the form shown hereinis c'hosen for the purposes of illustrationaandthat the invention'may'be embodied'in other forms without departing from its spirit.

What I claim as my invention and desire to secure "by Letters Patent is:

1. A mower including incombination a frame, a cutting'mechanism 'pivotally con-. necte'd'to said frame, a lifting mechanism for said cutting mechanism, a lever for adjusting said lifting mechanism, and manually controlled means for reversing the operating efiect ofsaid lever.

2. A mowerincluding in. combination a frame, a cutting mechanism pivotally connected to said :frame,'a lifting mechanism, forsaid cutting mech-anism, :a lever for adjusting said lifting mechanism, and :manually controlled means including oppositely disposed gears for reversing the operating effect of said lever.

A mower including in combination a frame, a cutting mechanism :pivotally connected to said frame, lifting mechanism for said cutting mechanisnn'a lever :for adjusting said lifting mechanism and man ually controlled meansin'clu'ding oppositely disposed gears engageable with said lever for reversing the operating efiect of said lever.

41-. A mower including in combination a frame, a cutting mechanism pivotally connected to said frame, a lifting mechanism for said cutting mechanism, and means including oppositely disposed gears and a laterally defiectable lever engageable with said gears for adjusting said lifting mechanism.

frame, aficutting mechanism pivotally connected to said :frame, a lifting mechanism for said-cutting mechanism, oppositely'disi posed igearsengageable wltha lever :for a d- 9. In a -mowing machine, frame, a cutting mechanism 'pivotally connected to said frame, a gearing mechamsm-carried by said frame for ad usting said cutting mechanism,

aleverpivoted to said frame and engageable with said gearing mechanism, and -means' for normally retaining; said lever disengaged from said last named mechanism.

10. In a mowing machine, a fra1ne,-a'cut-- ting'mechanism pivotally connected to said frame, a lifting arm pivoted to said frame, a lever pivoted to said lifting armand elimitcd in its-movement :rel'ative thereto, and resilient means for normally retainingsaid lever. in one position relative to said liftin g arm.

ll. Ina mowing-machine, a-frame, acutting mechanism pivotallyconnected to-said frame,- a lifting arm pivotedzto said frame, a lever pivoted to said lifting arm and limited in its movement relative thereto, i and A a spring disposed between said, lifting arm and said-lever fornormally retaining said lever in one position'relativeto said'lifting arms. 7

12. In mowing machine, a frame,-a cutting mechanism -pivotallyconnected to said frame, a lifting arm pivoted to said frame, a locking mechanism carried by said lifting arm for lockingsaid cutting mechanism in a plurality of positions of adjustment, and a lever pivoted to said frame and operable in one direction to raise said cutting mechanism and lock same in an adjusted position and operable in the same direction to automatically unlock said cutting mechanism and lower same to operative position.

13. In a mower, a frame, a cutting mechanism plvotally connected to said frame, a

bracket fixed to said'frame having a lat,-

direction to lower said cutter bar.

14. In a mower, a frame, a cutting mechanism pivotally connected to said frame, a 1

bracket fixed to said frame having a laterally extending bearing member, and oppositely disposed gears adapted to be connectedfor adjusting said cutting mechanism, and means engaging said lever for normally preto a lever mounted on said bearing member operable in one direction to raise said cutter bar and operable in the same direction to lower said cutter bar. i

15. In a mower including in combination, a frame, a cutting mechanism pivotally connected to said frame, a lifting mechanism for'said cutting mechanism, a lever for adusting said hfting mechanism, and means forreversing the operating effect of said lever. Y V

16. In a mowing machine, a frame, cut

ting mechanism pivotally connected to said frame, an adjusting mechanism for said cutting mechanism, a laterally deflecta-ble and vertically adjustable lever for adjusting said cutting mechanism, and means ei'igaging said lever for normally preventing the lateral movement of said lever.

17. In a mowing machine, a frame, cute ting mechanism pivotally connected to said frame, an adjusting mechanism for said cu t-, ting mechanism, a laterally-deflectable lever venting the lateral movement of said lever. 18. In a mowing machine, a frame, 'cut tin mechanism pivotally connected to said frame, an adjusting mechanism for said cutting meehanisnnra laterally deflectable lever for adjusting said cutting mechanism, and spring pressed means engaging said lever for normally preventing the lateral movement of said lever.

19. In a mowing machine, aframe, a cutting mechanism pivotally connected to said frame, an adjusting mechanism for said cutting mechanism, a laterally deflectable and;

vertically adjustable lever for adjusting said cutting mechanism, and means for normally raising said lever.

. 2-0. In a mowing machine, a frame, a cutting mechanism pivotally connected to said frame, an ad usting mechanism. for Sitltl'ClilZ- ting mechanism, a laterally defiectable and vertically adjustable lever for adjusting said cutting mechanism, and spring pressed means for normally raising said lever.

21. In a mowing machine, a frame, a cutting mechanism pivotally connected to said frame, an adjusting mechanism for said cut ting mechanism, a laterally deectable and vertically adjustable lever for adjusting said cutting mechanism, and means for normally raising anc for preventing lateral movement of said lever.

22. In a mowing machine, a frame, a cut-' ting mechanism pivotally connected to the frame, a pair of spaced gears carried by the frame for adjusting the cutting mechanism, a lever pivoted on the frame for downward movement between the gears and having means. for operatively engaging the gears to adjust the cutting mechanism, and means engaging the lever for returning it to, normal elevated position.

2-3. In a mowing machine, a frame, a cutting mechanism pivotally connected to said frame, a gearing mechanism carried by said frame for adjusting said cutting mechanism.

a lever pivoted to said frame and'engage. able with said gearing mechanism, and means for normally holdlng said lever in an elevated position and retaining said lever In testimony whereof ,crmnnns PEARSON.

I affix my signature, 

